A busy release for both cleanups and new drivers this time along with
further factoring out of replicated code into the core:
- Provide support in the core for DMA mapping transfers - essentially
all drivers weren't implementing this properly, now there's no
excuse.
- Dual and quad mode support for spidev.
- Fix handling of cs_change in the generic implementation.
- Remove the S3C_DMA code from the s3c64xx driver now that all the
platforms using it have been converted to dmaengine.
- Lots of improvements to the Renesas SPI controllers.
- Drivers for Allwinner A10 and A31, Qualcomm QUP and Xylinx xtfpga.
- Removal of the bitrotted ti-ssp driver.
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Merge tag 'spi-v3.15' into spi-linus
spi: Updates for v3.15
A busy release for both cleanups and new drivers this time along with
further factoring out of replicated code into the core:
- Provide support in the core for DMA mapping transfers - essentially
all drivers weren't implementing this properly, now there's no
excuse.
- Dual and quad mode support for spidev.
- Fix handling of cs_change in the generic implementation.
- Remove the S3C_DMA code from the s3c64xx driver now that all the
platforms using it have been converted to dmaengine.
- Lots of improvements to the Renesas SPI controllers.
- Drivers for Allwinner A10 and A31, Qualcomm QUP and Xylinx xtfpga.
- Removal of the bitrotted ti-ssp driver.
# gpg: Signature made Mon 31 Mar 2014 12:03:09 BST using RSA key ID 7EA229BD
# gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>"
# gpg: aka "Mark Brown <broonie@debian.org>"
# gpg: aka "Mark Brown <broonie@kernel.org>"
# gpg: aka "Mark Brown <broonie@tardis.ed.ac.uk>"
# gpg: aka "Mark Brown <broonie@linaro.org>"
# gpg: aka "Mark Brown <Mark.Brown@linaro.org>"
Pull input updates from Dmitry Torokhov:
"Some more updates for the input subsystem.
You will get a fix for race in mousedev that has been causing quite a
few oopses lately and a small fixup for force feedback support in
evdev"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: mousedev - fix race when creating mixed device
Input: don't modify the id of ioctl-provided ff effect on upload failure
The core implementation of cs_change didn't follow the documentation
which says that cs_change in the middle of the transfer means to briefly
deassert chip select, instead it followed buggy drivers which change the
polarity of chip select. Use a delay of 10us between deassert and
reassert simply from pulling numbers out of a hat.
Reported-by: Gerhard Sittig <gsi@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Pull Ceph fix from Sage Weil:
"This drops a bad assert that a few users have been hitting but we've
only recently been able to track down"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
rbd: drop an unsafe assertion
We should not be using static variable mousedev_mix in methods that can be
called before that singleton gets assigned. While at it let's add open and
close methods to mousedev structure so that we do not need to test if we
are dealing with multiplexor or normal device and simply call appropriate
method directly.
This fixes: https://bugzilla.kernel.org/show_bug.cgi?id=71551
Reported-by: GiulioDP <depasquale.giulio@gmail.com>
Tested-by: GiulioDP <depasquale.giulio@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If a new (id == -1) ff effect was uploaded from userspace,
ff-core.c::input_ff_upload() will have assigned a positive number to the
new effect id. Currently, evdev.c::evdev_do_ioctl() will save this new id
to userspace, regardless of whether the upload succeeded or not.
On upload failure, this can be confusing because the dev->ff->effects[]
array will not contain an element at the index of that new effect id.
This patch fixes this by leaving the id unchanged after upload fails.
Note: Unfortunately applications should still expect changed effect id for
quite some time.
This has been discussed on:
http://www.mail-archive.com/linux-input@vger.kernel.org/msg08513.html
("ff-core effect id handling in case of a failed effect upload")
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Olivier Bonvalet reported having repeated crashes due to a failed
assertion he was hitting in rbd_img_obj_callback():
Assertion failure in rbd_img_obj_callback() at line 2165:
rbd_assert(which >= img_request->next_completion);
With a lot of help from Olivier with reproducing the problem
we were able to determine the object and image requests had
already been completed (and often freed) at the point the
assertion failed.
There was a great deal of discussion on the ceph-devel mailing list
about this. The problem only arose when there were two (or more)
object requests in an image request, and the problem was always
seen when the second request was being completed.
The problem is due to a race in the window between setting the
"done" flag on an object request and checking the image request's
next completion value. When the first object request completes, it
checks to see if its successor request is marked "done", and if
so, that request is also completed. In the process, the image
request's next_completion value is updated to reflect that both
the first and second requests are completed. By the time the
second request is able to check the next_completion value, it
has been set to a value *greater* than its own "which" value,
which caused an assertion to fail.
Fix this problem by skipping over any completion processing
unless the completing object request is the next one expected.
Test only for inequality (not >=), and eliminate the bad
assertion.
Tested-by: Olivier Bonvalet <ob@daevel.fr>
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Sage Weil <sage@inktank.com>
Reviewed-by: Ilya Dryomov <ilya.dryomov@inktank.com>
This controller only supports 8-bit word length.
Set bits_per_word_mask so spi core will reject transfers that attempt to use
an unsupported bits_per_word value.
Also remove the duplicate code to test spi->mode, it is done by spi core.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
The memory allocated for cs is not freed anywhere.
Convert to use devm_kzalloc to fix the memory leak.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Pull networking fixes from David Miller:
1) We've discovered a common error in several networking drivers, they
put VLAN offload features into ->vlan_features, which would suggest
that they support offloading 2 or more levels of VLAN encapsulation.
Not only do these devices not do that, but we don't have the
infrastructure yet to handle that at all.
Fixes from Vlad Yasevich.
2) Fix tcpdump crash with bridging and vlans, also from Vlad.
3) Some MAINTAINERS updates for random32 and bonding.
4) Fix late reseeds of prandom generator, from Sasha Levin.
5) Bridge doesn't handle stacked vlans properly, fix from Toshiaki
Makita.
6) Fix deadlock in openvswitch, from Flavio Leitner.
7) get_timewait4_sock() doesn't report delay times correctly, fix from
Eric Dumazet.
8) Duplicate address detection and addrconf verification need to run in
contexts where RTNL can be obtained. Move them to run from a
workqueue. From Hannes Frederic Sowa.
9) Fix route refcount leaking in ip tunnels, from Pravin B Shelar.
10) Don't return -EINTR from non-blocking recvmsg() on AF_UNIX sockets,
from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (28 commits)
vlan: Warn the user if lowerdev has bad vlan features.
veth: Turn off vlan rx acceleration in vlan_features
ifb: Remove vlan acceleration from vlan_features
qlge: Do not propaged vlan tag offloads to vlans
bridge: Fix crash with vlan filtering and tcpdump
net: Account for all vlan headers in skb_mac_gso_segment
MAINTAINERS: bonding: change email address
MAINTAINERS: bonding: change email address
ipv6: move DAD and addrconf_verify processing to workqueue
tcp: fix get_timewait4_sock() delay computation on 64bit
openvswitch: fix a possible deadlock and lockdep warning
bridge: Fix handling stacked vlan tags
bridge: Fix inabillity to retrieve vlan tags when tx offload is disabled
vhost: validate vhost_get_vq_desc return value
vhost: fix total length when packets are too short
random32: avoid attempt to late reseed if in the middle of seeding
random32: assign to network folks in MAINTAINERS
net/mlx4_core: pass pci_device_id.driver_data to __mlx4_init_one during reset
core, nfqueue, openvswitch: Orphan frags in skb_zerocopy and handle errors
vlan: Set hard_header_len according to available acceleration
...
For completeness, turn off vlan rx acceleration in vlan_features so
that it doesn't show up on q-in-q setups.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Do not include vlan acceleration features in vlan_features as that
precludes correct Q-in-Q operation.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
qlge driver turns off NETIF_F_HW_CTAG_FILTER, but forgets to
turn off HW_CTAG_TX and HW_CTAG_RX on vlan devices. With the
current settings, q-in-q will only generate a single vlan header.
Remember to mask off CTAG_TX and CTAG_RX features in vlan_features.
CC: Shahed Shaikh <shahed.shaikh@qlogic.com>
CC: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
CC: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Acked-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
vhost fails to validate negative error code
from vhost_get_vq_desc causing
a crash: we are using -EFAULT which is 0xfffffff2
as vector size, which exceeds the allocated size.
The code in question was introduced in commit
8dd014adfe
vhost-net: mergeable buffers support
CVE-2014-0055
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When mergeable buffers are disabled, and the
incoming packet is too large for the rx buffer,
get_rx_bufs returns success.
This was intentional in order for make recvmsg
truncate the packet and then handle_rx would
detect err != sock_len and drop it.
Unfortunately we pass the original sock_len to
recvmsg - which means we use parts of iov not fully
validated.
Fix this up by detecting this overrun and doing packet drop
immediately.
CVE-2014-0077
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull input subsystem fixes from Dmitry Torokhov:
"Updates to Synaptics touchpad to better cope with devices in Lenovo
laptops, and a couple more fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics - add manual min/max quirk for ThinkPad X240
Input: synaptics - add manual min/max quirk
Input: cypress_ps2 - don't report as a button pads
Input: da9052_onkey - use correct register bit for key status
Input: adp5588-keys - get value from data out when dir is out
Pull drm fixes from Dave Airlie:
"I didn't want these to wait for stable cycle.
The nouveau and radeon ones are the same problem, where the runtime pm
stuff broke non-runtime pm managed secondary GPUs.
The udl fix is for an oops on unplug, and the i915 fix is for a
regression on Sandybridge even though it may break haswell (regression
wins)"
Daniel Vetter comments:
"My apologies for the i915 regression fumble, that thing somehow fell
through the cracks here for almost half a year :( Imo that's more than
enough flailing to just go ahead with the revert, and the re-broken
hsw should get peoples attention ..."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Undo gtt scratch pte unmapping again
drm/radeon: fix runtime suspend breaking secondary GPUs
drm/nouveau: fail runtime pm properly.
drm/udl: take reference to device struct for dma-bufs
Pull i2c build fix from Wolfram Sang:
"The build fix from my last request unveiled another build problem
which is fixed with this patch"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: cpm: Fix build by adding of_address.h and of_irq.h
This extends Benjamin Tissoires manual min/max quirk table with support for
the ThinkPad X240.
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The new Lenovo Haswell series (-40's) contains a new Synaptics touchpad.
However, these new Synaptics devices report bad axis ranges.
Under Windows, it is not a problem because the Windows driver uses RMI4
over SMBus to talk to the device. Under Linux, we are using the PS/2
fallback interface and it occurs the reported ranges are wrong.
Of course, it would be too easy to have only one range for the whole
series, each touchpad seems to be calibrated in a different way.
We can not use SMBus to get the actual range because I suspect the firmware
will switch into the SMBus mode and stop talking through PS/2 (this is the
case for hybrid HID over I2C / PS/2 Synaptics touchpads).
So as a temporary solution (until RMI4 land into upstream), start a new
list of quirks with the min/max manually set.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
CC: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
With devm_kzalloc, the memory is automatically freed when spi_device detach from
the bus.
Fixes: commit 43f627ac9d (spi: dw: fix memory leak on error path)
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stabe@vger.kernel.org
The memory allocated for chip is not freed anywhere.
Convert to use devm_kzalloc to fix the memory leak.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
It apparently blows up on some machines. This functionally reverts
commit 828c79087c
Author: Ben Widawsky <benjamin.widawsky@intel.com>
Date: Wed Oct 16 09:21:30 2013 -0700
drm/i915: Disable GGTT PTEs on GEN6+ suspend
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64841
Reported-and-Tested-by: Brad Jackson <bjackson0971@gmail.com>
Cc: stable@vger.kernel.org
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Todd Previte <tprevite@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Same fix as for nouveau, when we fail with EINVAL, subsequent
gets fail hard, causing the device not to open.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
The second parameter of __mlx4_init_one() is used to identify whether the
pci_dev is a PF or VF. Currently, when it is invoked in mlx4_pci_slot_reset()
this information is missed.
This patch match the pci_dev with mlx4_pci_table and passes the
pci_device_id.driver_data to __mlx4_init_one() in mlx4_pci_slot_reset().
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes a race which happens by freeing an object on the stack.
Quoting Julius:
> The issue is
> that it calls usbnet_terminate_urbs() before that, which temporarily
> installs a waitqueue in dev->wait in order to be able to wait on the
> tasklet to run and finish up some queues. The waiting itself looks
> okay, but the access to 'dev->wait' is totally unprotected and can
> race arbitrarily. I think in this case usbnet_bh() managed to succeed
> it's dev->wait check just before usbnet_terminate_urbs() sets it back
> to NULL. The latter then finishes and the waitqueue_t structure on its
> stack gets overwritten by other functions halfway through the
> wake_up() call in usbnet_bh().
The fix is to just not allocate the data structure on the stack.
As dev->wait is abused as a flag it also takes a runtime PM change
to fix this bug.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Reported-by: Grant Grundler <grundler@google.com>
Tested-by: Grant Grundler <grundler@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current error handling of virtqueue_kick() was wrong in two places:
- The skb were freed immediately when virtqueue_kick() fail during
xmit. This may lead double free since the skb was not detached from
the virtqueue.
- try_fill_recv() returns false when virtqueue_kick() fail. This will
lead unnecessary rescheduling of refill work.
Actually, it's safe to just ignore the kick failure in those two
places. So this patch fixes this by partially revert commit
6797590118.
Fixes 6797590118
(virtio_net: verify if virtqueue_kick() succeeded).
Cc: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes the following coccicheck warning:
linux-2.6/drivers/spi/spi-omap-uwire.c:485:2-8: ERROR: missing iounmap; ioremap on line 471 and execution via conditional on line 481
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Set highest transfer speed to master->max_speed_hz and then we can remove
hw->max_speed.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
If we were on a non-optimus device, we'd return -EINVAL, this would
lead to the over engineered runtime pm system to go into an error
state, subsequent get_sync's would fail, so we'd never be able
to open the device again.
(like really get_sync shouldn't fail if the device isn't powered
down).
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
this stops the device from being deleted before all the dma-bufs
on it are freed, this fixes an oops when you unplug a udl device while
it has imported a buffer from another device.
Signed-off-by: Dave Airlie <airlied@redhat.com>
The mvneta driver currently uses of_iomap(), which has two drawbacks:
it doesn't request the resource, and it isn't devm-style so some error
handling is needed.
This commit switches to use devm_ioremap_resource() instead, which
automatically requests the resource (so the I/O registers region shows
up properly in /proc/iomem), and also is devm-style, which allows to
get rid of some error handling to unmap the I/O registers region.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 5445eaf309 ('mvneta: Try to fix mvneta when compiled as
module') fixed the mvneta driver to make it work properly when loaded
as a module in SGMII configuration, which was tested successful by the
author on the Armada XP OpenBlocks AX3, which uses SGMII.
However, it turns out that the Armada XP GP, which uses RGMII, is
affected by a similar problem: its SERDES configuration is lost when
mvneta is loaded as a module, because this configuration is set by the
bootloader, and then lost because the clock is gated by the clock
framework until the mvneta driver is loaded again and the clock is
re-enabled.
However, it turns out that for the RGMII case, setting the SERDES
configuration is not sufficient: the PCS enable bit in the
MVNETA_GMAC_CTRL_2 register must also be set, like in the SGMII
configuration.
Therefore, this commit reworks the SGMII/RGMII initialization: the
only difference between the two now is a different SERDES
configuration, all the rest is identical.
In detail, to achieve this, the commit:
* Renames MVNETA_SGMII_SERDES_CFG to MVNETA_SERDES_CFG because it is
not specific to SGMII, but also used on RGMII configurations.
* Adds a MVNETA_RGMII_SERDES_PROTO definition, that must be used as
the MVNETA_SERDES_CFG value in RGMII configurations.
* Removes the mvneta_gmac_rgmii_set() and mvneta_port_sgmii_config()
functions, and instead directly do the SGMII/RGMII configuration in
mvneta_port_up(), from where those functions where called. It is
worth mentioning that mvneta_gmac_rgmii_set() had an 'enable'
parameter that was always passed as '1', so it was pretty useless.
* Reworks the mvneta_port_up() function to set the MVNETA_SERDES_CFG
register to the appropriate value depending on the RGMII vs. SGMII
configuration. It also unconditionally set the PCS_ENABLE bit (was
already done for SGMII, but is now also needed for RGMII), and sets
the PORT_RGMII bit (which was already done for both SGMII and
RGMII).
This commit was successfully tested with mvneta compiled as a module,
on both the OpenBlocks AX3 (SGMII configuration) and the Armada XP GP
(RGMII configuration).
Reported-by: Steve McIntyre <steve@einval.com>
Cc: stable@vger.kernel.org # 3.11.x: 5445eaf309 mvneta: Try to fix mvneta when compiled as module
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bit 3 of the MVNETA_GMAC_CTRL_2 is actually used to enable the PCS,
not the PSC: there was a typo in the name of the define, which this
commit fixes.
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The cypress PS/2 trackpad models supported by the cypress_ps2 driver
emulate BTN_RIGHT events in firmware based on the finger position, as part
of this no motion events are sent when the finger is in the button area.
The INPUT_PROP_BUTTONPAD property is there to indicate to userspace that
BTN_RIGHT events should be emulated in userspace, which is not necessary
in this case.
When INPUT_PROP_BUTTONPAD is advertised userspace will wait for a motion
event before propagating the button event higher up the stack, as it needs
current abs x + y data for its BTN_RIGHT emulation. Since in the
cypress_ps2 pads don't report motion events in the button area, this means
that clicks in the button area end up being ignored, so
INPUT_PROP_BUTTONPAD actually causes problems for these touchpads, and
removing it fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=76341
Reported-by: Adam Williamson <awilliam@redhat.com>
Tested-by: Adam Williamson <awilliam@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Including hardware acceleration features in vlan_features breaks
stacked vlans (Q-in-Q) by marking the bottom vlan interface as
capable of acceleration. This causes one of the tags to be lost
and the packets are sent with a sing vlan header.
CC: Nithin Nayak Sujir <nsujir@broadcom.com>
CC: Michael Chan <mchan@broadcom.com>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This driver sets the SPI_MASTER_HALF_DUPLEX flag, so the spi core will check
transfers to ensure they are not full duplex.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
